| article html file updated | 8 February 2020 08:12 CET | Update | https://www.mdpi.com/2073-4441/9/6/430 |
| article html file updated | 25 September 2019 07:57 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:37 CEST | Update | N/A |
| article html file updated | 29 June 2017 12:17 CEST | Update | N/A |
| article html file updated | 15 June 2017 05:23 CEST | Original file | N/A |
| article xml uploaded. | 15 June 2017 05:21 CEST | Original file | https://www.mdpi.com/2073-4441/9/6/430/xml |
| article pdf uploaded. | 15 June 2017 05:21 CEST | Updated version of record | https://www.mdpi.com/2073-4441/9/6/430/pdf |
| article pdf uploaded. | 13 June 2017 13:39 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/430/pdf-vor |
